Device foe charging and discharging enameling ovens



(No Model.)

A. H. FRANCK.

2 Sheets-Sheet l.

DEVICE POR GHARGING AND DISCHARGING BNAMELING OVBNS.

Patented Nov. 17, 1891-.

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2 sheets-sheet 2.

(No Model.;

A. H. FRANCK, DEVICE FOR GHARGING AND DISGHARGING ENAMELING (WENS.

No. 463,503. Patented Nov. 17g-1891.

WITH/58856' [NVE/WOR Ma/0m BMV@ 4 Uivrrnn STATES PATENT OFFICE.

AUGUST H. FRANCK, OF SHEBOYGAN, VISCON SIN, ASSIGNOR OF TVO-THIRDS TO VILLIAM F. SCHULZ AND JOHN P. VILSON, BOTH OF SAME PLACE.

DEVICE FOR CHARGING AND DISCHAFIGINGA ENAMELlNG-OVENS.

SPECIFICATION forming part of Letters Patent No. 463,503, dated November 1'?, 1891.

Application filed March 11, 1891- Serial No. 384,571. (No model.)

To @ZZ whom it may concern.-

Be it known that I, AUGUST H. FRANCK, a citizen of the United States, and a resident of Sheboygan, in the county of Sheboygan,Vis cousin, have invented certain new and useful Improvements in a Device for Charging and ,Discharging Enameling Ovens, of which the following is a specification.

This invention relates to an improved device for placing articles to' be enameled into a furnace and removing said articles after they have been baked, which apparatus is simple in construction and saves much time and labor and avoids to a Very great extent a loss or waste.

The invention consists in the combination, with an enameling-furnace, of a permanent grate in the same, movable forks having tines fitting in between the grate-bars, anda conveyer on which said forks are adapted to be held and to be moved in and out of the furnace and with which movable conveyer the grate can be raised or lowered while in or out of the furnace. i

The invention also consists in the construction and combination of parts and details, which will be fully described hereinafter, and iinally pointed out in the claims.

In theaccompanying drawings, Figure l is a vertical longitudinal sectional view of my improved apparatus for placing wares into an enameling-furnace and removing'them from the same, the furnace being shown in a longitudinal section. Fig. 2 is an end view of the movable supporting-frame. Fig. 3 is a side view of a truck for shifting the forks to the movable supporting-frame and furnace. Fig. 4 is an end view of said truck and a side view of one of the forks, partsbein g broken out. Fig. 5 is a perspective view of the permanent grate for the furnace; and Fig. G is a perspective view of one of the forks. l

Similar letters of reference indicate corresponding parts.

The enameling-furnace A is constructedin the usual well-known manner, but is provided on its bottom with a permanent grate B, composed of a number of bars b, united by the cross-bars b', which grate-bars b are separated such distance that the tines cl of a fork D can' pass in between them, the grate-bars b being also of such height that the tines d of the fork D can be moved up and down between said grate-bars. The tines of the fork D are provided near their connected ends with a bend or offset D', and above the same with the horizontal parts D2, at which parts D2 the several tines are united by a cross-bar C. A greater or less distan-ce from the front of the furnace two tracks F are arranged 6o parallel with the front end of the furnace, and on said tracks f a truck G is mounted to run,which truck serves for conveying the forks D to the device, by means of which lthe forks are moved into or out of the furnace. On the rails l-I, arranged above and in front of the furnace and parallel with the longitudinal axis of the same, the truck J is mounted to run, from which truck the two bars K project downward and are suitably braced from the truck. On the 7o 'lower end of each bar K the vertical hollow shank L of an L-shaped arm L is mounted to slide vertically, said shank L being provided at the upper and lower ends with guiderollers L2. The two sliding shanks L are connected by a cross-bar M, and cross-braces lV support a rocking shaft N, provided with two hooks N and with a handle-lever N2. Below the rocking shaft N a transverse rod O unites the hollow shanks L L', and on said 8o rod O two anti-friction rollers O are mounted, which rest on the edges of cams or eccentrics P, keyed on a rocking-shaft P', provided with a handle Q, keyed thereon, and serving to turn said shaft and the eccentrics or cams P. The shaft P is journaled at its ends in bearings R, that are vertically-adjustable on the lower ends of the bars K by two screws S, passing th rough the lugs at the lower ends of said bars K. The front ends of the L-shaped arms 9o L are connected by av cross-bar T.

The operation is as follows: One of the forks D, of which there are two, rests on the truck G, and on said fork the articles to be enameled are packed in such a manner that they rest on and are supported by the tines. The truck D is then moved to the front of the baking-oven, and the truck J is moved toward the baking-oven to such an extent that the armsL pass under the upper horizontal parts Ioo open but a very short time.

D2 of the fork D. By means of the screws S the shaft P can be adjusted higher or lower, and as the arms L L' are supported by means of the rollers O from said shaft P the arms L can thus be adj usted by means of said screws S at any exact position to receive the higher horizontal parts D2 of the fork D. After the arms L have been brought in the proper po sition thehandle-lcver N2 of the rocking shaft Nis pulled down, so as to cause the hooks N to pass around the cross-bar C on the fork D, as shown in Fig. l, thus securely holding the fork on the arms L L. By means of the handle-lever Q the cams or eccentricsP are turned so as to move the arms L L upward slightly, so as to permit moving the truck G from under the fork. ,'lhe fork while in the raised position is moved into the furnace by moving the truck .l in the direction toward the open end of the furnace. After the fork D has been moved into the furnace the desired distance the handle Q is moved up ward for the purpose of lowering the arms L Land the fork D2. The articles that have been transferred into the furnace while resting on the tines of the fork D now rest on the upper edges ofthe grate-bar b, and the lowered fork can be withdrawn from the furnace and detachedfrom theconveyingdevice and bymeans of the truck G transferred back to be filled again, and so on. After the articles have been baked and they are to be removed, all that is necessary is to convey one of the forks while in lowered posit-ion and while held in the manner shown in Fig. l into the furnace in such a manner that the tines of the fork pass between the grate-bars, then raise said fork in the manner described for the purpose of lifting the articles from the tops of the gratebars upon the tines of the forli, then withdraw the fork and the articles thereon, move the truck G under the fork, and then lower the fork, det-ach it from the conveyer, and move the truck G with .the iilled fork thereon to a suitable place where the articles can be removed from the fork.

By using my improved device considerable fuel is saved, as the furnace-door need remain The articles can be handled very easily and rapidly and in 5o great quantities. The permanent grate in the furnace is very durable and lasts a long time, as it is not subjected to sudden changes of temperature as the removable grates used heretofore have been.

Having thus described my invention, I claim as new and desire to secure by Letters Patentl. The combination, with an cnameling-furnace, of a permanent grate in the same, an independent removable fork having tines fitting between the grate-bars, and a conveyer located outside of the furnace for introducing the fork into the furnace and removing it from the same, substantially as set forth.

2. The combination, with an enameling-furnace, of a fixed grate in the same, an independent and removable fork, the tines of which t between the grate-bars, a conveyer for said fork located outside of the furnace, which conveyer is supported to moveto or from the opening of the furnace, and means of raising or lowering said conveyer While in or out of the furnace, substantially as set forth.

3. The combination, with a furnace, of a xed grate in the same, an independent removable fork, a truck, rails parallel with the ends of the furnace, on which rails the truck runs,a conveyer for the fork, which conveyer is supported to move toward or from the opening of the furnace, and means for raising or lowering the conveyer while in or out of the furnace, substantially as set forth.

4. The combination, with an enameling-furnace, of a fork having its tines united at one end by a cross-bar, a conveyer, and a rocking shaft provided With arms for embracing the said cross-bar and clamping the fork on the conveyer, substantially as set forth.

In testimony that I claim the foregoing as my invention I have signed my name in presence of two subscribing witnesses.

AUGUST II. FRANCK.

iVitnesses:

CARL Dosn, 'JOHN DIEKAN 

